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Low noise, fast acting SPDT switch for low RF pulse

Question asked by jrh69@psu.edu on Jun 20, 2017
Latest reply on Jul 18, 2017 by ndhull

I am looking for a fast (microseconds) SPDT type switch for a low field MRI application. Currently I have two concentric RF coils in my system, one for transmission and one for reception of signal. We are working in the 100-300 kHz range. I would like to reduce my system to a single coil which both transmits and receives signal. I will need a switch to do this. I typically pulse the RF signal for around 1 ms at a time, so I need a fast switch. I also have very low SNR and a very weak signal, so I am concerned that the switch should not add much more to the system. Any product suggestions? thanks

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